Rolling kitchen.



M. ILITZ.

ROLLING KITCHEN.

APPLICATIDN FILED MAYY. 1911.

Patented Jan. 14, 1919.

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Patented J an. 14, 1919.

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APPLICATION FILED MAX 7.19M.

1,291,006. Patented. Jan. 14, 1919.

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M. ILITZ.

ROLLING KITCHEN.

APPLICATION FILED MAY 7, 19H.

Patented Jan. 14, 1919.

6 SHEETS-SHEET 4.

M. I LITZ.

ROLLING KITCHEN.

APPLICATION FILED MAY 7. I917- Patented Jan. 14, 1919.

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M. ILITZ.

ROLLING KITCHEN.

APPLICATION man MAY]. 1911.

1,291,096; Patented Jan. 14, 1919.

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UNITED sTAT s PATENT orrion.

MICHAEL ILITZ, OF CHICAGO, ILLINQIS, ASSIGNOR TO BUZZACOIT CAMP AND FIELD EQUIPMENTCQ, or CHICAGO, I LINoIsacoRroaAT on or ILLINOIS.

ROLLING KITCHEN.

Specification of Letters Patent.

Patented J an. 14, 1919.

Application filed May 7, 1917. Serial No. 166,846.

To all whom it may concern:

Be it known that I, hlici-iAiiL .ILi'rz, a citizen of the United States, and a resident oi Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Rolling Kitchens, of which the following is a specification.

My invention relates to rolling kitchens particularly adaptable for army use.

Among the important objects of the invention are to provide improved construc tion which will enable either the use of solid or liquid fuel; to provide improved arrangement of the various combustion and cooking structures whichwill give maximum capacity with minimum weight; to provide combustion arrangement which will insure rapid anduniform heating with minimum radiation; to provide construction and arrangement which will insure a low center of gravity and balanced running conditions so that the greater part of the weight is borne by the axle; and in general to produce a light rolling kitchen of great strength and durability and of maximum cooking capacity with very low fuel cost.

The above and other features of my invention are described in the following specification and shown on the accompanying drawings. In these drawings:

Figure 1 is a side elevational view, F 2 is a plan view,

In the construction shown an axle 10 is supported from wheels 11, the axle section 10 between the wheels being dropped a distance in order to bring'down the center of gravity of thestruc-ture. At the ends of the dropped section of the axle sets of cross beams 12, 13 andlt, 15 are secured to the axle, the outer beams 12 and 15 being, extended at their outer ends 12 and 15 diagonally inwardly and forwardly to form a spectively and extending transversely of theaxle are the water containing rectangular sheet metal structures 17 and 18 each having at its rear end a filler opening plug 19 and a discharge faucet 20, each filler plug having a relief valve 21. These Water receptacles only partly cover the inner beams 13 and 1% in order to leave supporting surface on such beamsfor the ash-tray or pan 22, angle bars 23 and 2 1 secured to the inner walls of the water containers above the ash pan supporting a grate structure 25 which can readily be slid into place on the angle bars or removed therefrom.

Secured on top of the water containers and secured inwardly a distance are flue and oven structures designated as a whole 0 and O,'the space26 between theinner sides of thesestructures being above the combustion space 27 over the grate, the space 26 forming themain flue when wood or coal is burned on the grate and forming a receptacle for an oil burner B when liquid fuel is used. Thefront ends .of the combustion chamber 27 and the space26 are closed by a vertical .wall28,.and the rear end of the space 26 is closed by a Wall 29, while the rear end of the co nb ustion space is adapted to be closed by doors 30 and 31 provided with air regulating dampers 32 and 33 respectively.

The ovenand flue structures 0 and O are of identical construction and I shall apply ordinary reference characters to one and primed referencecharacters to the other. Describing the structure 0, a plate of sheet metal is bent at right angles to form the base wall 3%, the inner side wall 35 and the outer wall 36, the base wall being secured to the water container 18 and the inner wall 35 forming one side of the space 26. Vithin these walls and spaced therefrom is the rectangular oven 0 bent upfrom a single piece of sheet metal with its ends at the upper inner corner receiving and riveted to the inwardly deflected upper section 37 of the wall 35. Spacers 38 are interposed between the walls 34 and 3 6 and the walls of the oven and are held in place by rivets 39. The

structure 0 is similarl constructed and the wall -l0 on which doors 4:1 and 42 are hinged to open the ovens for the insertion of mate rial to be treated.

Secured on top of the oven o'and extending between the walls 35 and 36 are beams 43, and similar beams 4A are secured on top of the oven 0 and on these beams are mounted the front and rear cooking tanks 45 and 46 which extend parallel with the vehicle axle. Angle bars 47 and 47 secured to the upper ends of the walls 36 and 36 afford supporting ledges for the outer corners of the tanks, and a. spacer beam 48 extends between the inner corners of the tanks and is secured to the adjacent I-beams 43 and H, the tanks being thus readily removable for cleaning purposes and when re-applied being snugly held in place.

The spaces between the tank bottoms and the tops of the ovens 0, 0 form flue sectlons which communicate at their inner ends with the combustion or flue space 26 and at their outer ends with the flue spaces 49 and 49 adjacent the walls 36 and 36, and these flue spaces communicate with the flue spaces 50 and 50' below the ovens, which spaces in turn communicate with the fine spaces 51 and 51 between the inner sides of the ovens and the walls 35 and 35. The fine passageways 51 and 51 communicate through openings 52 and 52 with the space 53 bounded by the walls 29, 35, 25 and 40, and elbow 54: leading from the rear end of the space 53 to support a stack 55, a damper 56 being provided in the elbow to control the draft. If wood, coal, or other solid fuel is burned on the grate, the products of combustion will pass upwardly into space 26, and from there through the flue passageways around the ovens 0 and 0 and through outlets 52 and 52 intothe space 53 from where they escape through the stack. If instead of solid fuel an oil burner is used, the products of combustion will travel through the same path. In each case the ovens will be completely enveloped by a circulation of burning products and heat. In order to cause more uniform distribution of the heat around the ovens, I provide horizontally extending baflle partitions 57 and 57 in the flue sections 51 and 51 respectively, these baflie partitions extending from the rear ends of these flue sections to within a short distance of the front ends thereof, and below the outlets 52 and 52. These partitions will prevent the products of combustion and heat from traveling directly underneath the ovens toward the outlets and will cause the products of combustion to be distributed and spread out below the ovens by forcing them to flow underneath the partitions and through the passageways 58 and 58 and then back over the tops of the partitions to the outlets 52 and 52. When a fire is started on the grate or the burner is ignited, the air in the space 53 leading to the stack is immediately heated and tends to flow upwardly through the stack and this draft assists in starting circulation in the flue passageways surrounding the ovens.

In the drawings I have shown the oil burner B applied in the space 26. Any form of burner may be used. The burner shown is detachably suspended from plates 59 supaorted on the inner ends of the beams 43 and at. The burner is supplied with oil from the tanks 60 and 60 which extend transversely with reference to the axle and are held against the outer sides of the walls 36 and 36 by suitable supporting straps 61. The feed pipe 62 connects the oil tanks and the flow of oil from this pipe to the burner feed pipe 63 is controlled by a valveG. The pipe 62 equalizes the oil level in the tanks. A level equalizing pipe 65 is also preferably )rovided for the water containers l7 and 18.

In front of the wall 28 I preferably mount a box or reservoir 66 on the cross beams 12, 13 and 14, 15, the top 67 of this box being hinged thereto along its front edge 68 to form a cover and to support the seat 69.

Th inner end of the tongue 16 is preferably attached to brackets 70 secured to the front wall of the box. Other brackets 71 and 72 secured to the front of the box support a foot board 73 from whose ends step structures 7 at are hung. A rod 75 journaled in the beam ends 12 and 15 support brake shoes 76at its ends for engaging with the vehicle wheels, a crank arm 77 extending forwardly from the rod and being pivoted to the post 7 8 extending upwardly through the. foot board 73, a spring 78 connecting between the board and the bar tending to swing the arm 77 to rotate the brake rod 75 to keep the brake shoes away from the wheels. Upon foot pressure on the post the brake shoes will be applied to the wheels and stopping of the vehicle can thus be readily controlled. 7 9 represents a doubletree pivoted on the tongue 16 and 80 represents the swingletrees to whlch draft animals are hitched.

\Vhere oil burners are used it may be desirable to feed the oil under pressure and I therefore provide a pump 81 and I preferably locate this pump on the foot board so that it can be operated by the driver or by the cook sitting alongside of the driver. As shown, the pump piston rod extends through the foot board and terminates in a foot plate 82, and the pump is connected by pipe 83 to the pipe 84: connecting the oil tanks, a valve 85 being interposed to be closed when sufficient pressure has been introduced into the tanks by the pump. In order that the pressure in the tanks may be observed gages 86 and 86 may be'provided on the oil tanks. against the flue walls 36 and 36 the fuel will be more or less heated before it is delivered to the burner.

Provision is made to permit access to the various flue sections for cleaning purposes. When the tanks 45 and 46 are removed the flue sections above and along the outer sides of the oven are accessible and can be cleaned. In the rear wall .40 flue doors 87 and 87 are provided for access to the lower flue spaces 50 and 50 and through the. door openings any accumulated soot, a.shes, etc., can be removed. The ash tray and the grate structure being removable, of the combustion spaces 27 and 26 can be readily accomplished.

The kitchen structure I have described is particularly adaptable for army use and can be mounted on two wheels or four wheels. When mounted on two wheels, as shown, the arrangement of the various parts is such that the vehicle is well balanced and can be drawn with the greatestefliciency by draft animals, the greatest part of the load being carried by the axle. The axle being dropped, thc center of gravity of the structure is low, and the vehicle can therefore be driven over rough country with-' out danger of tipping over. In order to holdthe vehicle in level position when the animals are unhitched, pivoted legs 88 and collapsible braces 89 are provided.

The structure is constructed entirely of sheet metal and standard beams or bars and it has therefore great strength combined with lightness and large capacity. It is so devised that wood as well as oil can be used as fuel, the burner being readily removable when it is desired to burn solid fuel on the grate. No asbestos, fire brick or other means are necessary to retain the heat, the flues surrounding the ovens and extending below the cooking tanks serving also as heat radiation preventing air jackets. On account of the baflle plates, the heat is caused to circulate with uniformity so that all sides and ends of the ovens and the bottoms of the cooking tanks are uniformly heated. The smoke box and stack rising therefrom are so located that as soon as the fire is started circulation will begin through the flues to insure rapid heating of the ovens and tanks.

Although the structure as a whole is light and compact, it has a very large capacity and at least three hot dishes can rapidly be prepared and a great many men supplied with food while the vehicle is at a halt or in motion. The arrangement is such that the various tanks can be readily removed for sanitary cleaning and the combustion and flue spaces are also readily accessible for cleaning purposes. lVhen a burner is used for producing heat, the space above the grate can be utilized for cooking purposes to thus increase the cooking capacity of the structure.

cleaning I do not of course desire to be limited to the exact details of construction and arrangement shown and. described as changes and modifications are no doubt possible which would .still come within the scope of the invention. I claim .as follows:

1. In a structure of the class described, thecombination of twoparallel water tanks, the space between said a combustion chamber, a grate at the lower end of said chamber, oven structures mounted on vsaid tanks and separatedat their-inner sides to leave a combustion space in communication with .thecombustion chamber, and a stack extending from said combustion space.

2. In a device of the class'described, the combination of two parallel water tanks, a grate extending between said water tanks at the lower end thereof, oven structures mounted on said water-tanks, the inner sides of said oven structuresbeing separated to leave a combustion space in communication with the combustibn chamber above the grate, cooking tanks mounted on said oven structures; and extending across the combustion space, and a stack communicating with the combustion space. j

3. In a structure ofthe class described, the combination of a combustion chamber and a grate therein-for solid fuel,an oven mounted over said combustion chamber at each side water tanks forming thereof, the inner sides of said ovens being I separated to leave an auxiliary combustion space above the combustion chamber into which auxiliary space an oil burner may be detachably mounted to supply heat in place of solid fuel on the grate, cooking tanks mounted above the ovens, flues extending from said auxiliary space'entirely around said ovens, and a stack into which said flues discharge.

4. In a rolling'kitchen, the combination with a wheeled axle, of transverse supporting beams secured to the axle near the ends thereof, walls mounted on said beams and forming a combustion chamber, a grate in said combustion chamber for solid fuel,

ovens above said combustion chamber ex-' tending transversely of the axle and separated at their inner ends to leave an auxiliary combustion space above and in communication with the combustion chamber, cooking kettles mounted over said oven and extending parallel with the axle, flues extending from said auxiliary combustion space and entirely encircling said ovens, and a stack into which said flues discharge.

5. In a rolling kitchen, the combination with a wheeled axle, of transverse supporting beams secured to the axle near the ends thereof, walls mounted on said beams and forming acon'rbustion chamber, a grate in said combustion chamber for solid fuel, ovens above said combustion chamber extending transversely of the axle andsep arat-ed at their inner ends to leave an auxiliary combustion space above and in communication with the combustion chamber, cooking kettles mounted over said oven and extending parallel with the axle, fines extending from said auxiliary combustion space and entirely encircling said ovens, baflie plates interposed in said flues causing uniform distribution of heat around said ovens, and a stack into which said flues discharge.

6. In a rolling kitchen, the combination with a wheeled axle, of transverse beams secured to the axlenear the ends thereof, two of said beams being extended forwardly to form a jaw, a vehicle tongue secured in said jaw, walls mounted on said beams to form a combustion chamber, ovens mounted over said combustion chamber and'extending transversely with reference to the axle, an auxiliary combustion space between the ovens communicating with the combustion chamher, and cooking tanks mounted over said 7 In *a rolling kitchen, the combination with a wheeled'axle, supporting cross beams secured to'said axle near the ends thereof, two of said beams extending forwardly and a wagon tongue secured to the front ends Copies of this patent may be obtained for five cents each, by addressing the bustion chamber, cooking tanks mounted" above said ovens and extending parallel to the axle, fiues extending from said auxiliary combustion space around the ovens, a stacr into which thefluesdischarge, and a storage receptacle mounted on said cross beams in front of the water tanks and ovens.

8. Ina structure of the class described, the combination of a combustion chamber grate therein for solid fuel, an oven mounted over said ombustion chamber at eachside thereof, the inner sides of said ovens being separated to leave an auxiliary combustion space above thecombustion chamber, cook ing tanks mounted above the auxiliary combustion space, and a stack extending from said auxiliary combustion space.

In witness whereof, I hereunto subscribe my name this ltth day of April, A. D. 1917 MIGHAEL ILITZ."

Commissioner of Patents.

Washington, D. 0.

and a 

